What 85 owners told NHTSA about the 2013 GMC Sierra 2500 Hd

Vehicle EGR Bypass Valve becomes clogged do to faulty propeller system in valve resulting in vehicle entering into limp mode and stranding passengers in i climate and dangerous weather.

NHTSA ODI 11500307

I have a 2013 GMC Sierra, purchased new in 2012, has approximately 35,000 miles. The check engine light came on while driving and suddenly another light came on. Then a third light came on claiming poor engine fluid quality. I immediately stopped at an auto parts store and put DEF fluid in the pickup and continued to drive thinking the lights would go out, but instead a warning was flashing on the dash that says after so many miles the truck will be slowed down. We started getting nervous because we were driving on the highway and if the truck suddenly slows down whilst driving in highspeed traffic, our slower vehicle would potentially cause a collision and put us and others in harms way. In reading your own safety site, there is a recall on the vehicle regarding faulty airbags, so it could be even worse! In our investigations of our current issue, we have found that there was a lawsuit from 2019 against GM and their faulty fuel system with their trucks. See link here https://www.detroitnews.com/story/business/autos/general-motors/2019/08/07/lawsuit-says-gm-sold-trucks-not-compatible-american-diesel-fuel/1943084001/ many people on many different forums have also complained about this same problem with no fixes, the only suggestions are to remove the emissions parts and refab the motor. GM tells them that they need to only use their specific DEF fluid, which is steering. GM is very well aware of the problems, because they have employees following these forums and commenting on them.(Dieselplace.com) The truck can be made available for you to see/inspect and I refuse to drive the truck until this issue is resolved.

NHTSA ODI 11439435

TL* THE CONTACT OWNS A 2013 GMC SIERRA. THE CONTACT STATED THAT WHILE DRIVING AT NIGHT, THE HEADLIGHTS SEIZED AND THE VEHICLE FAILED TO ACCELERATE. THE VEHICLE WAS TAKEN TO THE DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 4,000.

NHTSA ODI 10676943

TL* THE CONTACT OWNS A 2013 GMC SIERRA 1500. THE CONTACT STATED THAT WHILE DRIVING 50 MPH, THE VEHICLE SUDDENLY ACCELERATED TO 70 MPH. THE CONTACT WAS ABLE TO STOP THE VEHICLE BY APPLYING THE BRAKES. THE CONTACT TOOK THE VEHICLE TO THE DEALER. THE DEALER DID NOT PERFORM A DIAGNOSTIC TEST. THE DEALER STATED THE DIAGNOSTIC TEST WAS UNNECESSARY. THERE WERE NO REPAIRS MADE TO THE VEHICLE. THE FAILURE MILEAGE WAS 3,000. ...UPDATED 08/22/13 *BF THE DEALER WAS UNABLE TO FIND A PROBLEM. UPDATED 08/22/13

NHTSA ODI 10532675